
import {Module} from "vuex";
import {TagsViewState,RootStateTypes} from "@store/interface";

const tagsViewModule: Module<TagsViewState, RootStateTypes> = {
    namespaced: true,
    state: {
        visitedViews: [],
        cachedViews: []
    },
    mutations: {
        ADD_VISITED_VIEW: (state, view) => {
            if (state.visitedViews.some(v => v.path === view.path)) return
            state.visitedViews.push(
                Object.assign({}, view, {
                    title: view.meta?.title || 'no-name'
                })
            )
        },
        ADD_CACHED_VIEW: (state, view) => {
            if (state.cachedViews.includes(view.name)) return
            if (!view.meta.noCache) {
                state.cachedViews.push(view.name)
            }
        },

        DEL_VISITED_VIEW: (state, view) => {
            for (const [i, v] of state.visitedViews.entries()) {
                if (v.path === view.path) {
                    state.visitedViews.splice(i, 1)
                    break
                }
            }
        },
        DEL_CACHED_VIEW: (state, view) => {
            const index = state.cachedViews.indexOf(view.name)
            index > -1 && state.cachedViews.splice(index, 1)
        },

        DEL_OTHERS_VISITED_VIEWS: (state, view) => {
            state.visitedViews = state.visitedViews.filter(v => {
                return v.meta?.affix || v.path === view.path
            })
        },
        DEL_OTHERS_CACHED_VIEWS: (state, view) => {
            const index = state.cachedViews.indexOf(view.name)
            if (index > -1) {
                state.cachedViews = state.cachedViews.slice(index, index + 1)
            } else {
                // if index = -1, there is no cached tags
                state.cachedViews = []
            }
        },

        DEL_ALL_VISITED_VIEWS: state => {
            // keep affix tags
            const affixTags = state.visitedViews.filter(tag => tag.meta?.affix)
            state.visitedViews = affixTags
        },
        DEL_ALL_CACHED_VIEWS: state => {
            state.cachedViews = []
        },

        UPDATE_VISITED_VIEW: (state, view) => {
            for (let v of state.visitedViews) {
                if (v.path === view.path) {
                    v = Object.assign(v, view)
                    break
                }
            }
        }
    },
    actions: {
        addView({ dispatch }, view) {
            dispatch('addVisitedView', view)
            dispatch('addCachedView', view)
        },
        addVisitedView({ commit }, view) {
            commit('ADD_VISITED_VIEW', view)
        },
        addCachedView({ commit }, view) {
            commit('ADD_CACHED_VIEW', view)
        },
        delView({ dispatch, state }, view) {
            return new Promise(resolve => {
                dispatch('delVisitedView', view)
                dispatch('delCachedView', view)
                resolve({
                    visitedViews: [...state.visitedViews],
                    cachedViews: [...state.cachedViews]
                })
            })
        },
        delVisitedView({ commit, state }, view) {
            return new Promise(resolve => {
                commit('DEL_VISITED_VIEW', view)
                resolve([...state.visitedViews])
            })
        },
        delCachedView({ commit, state }, view) {
            return new Promise(resolve => {
                commit('DEL_CACHED_VIEW', view)
                resolve([...state.cachedViews])
            })
        },
        delOthersViews({ dispatch, state }, view) {
            return new Promise(resolve => {
                dispatch('delOthersVisitedViews', view)
                dispatch('delOthersCachedViews', view)
                resolve({
                    visitedViews: [...state.visitedViews],
                    cachedViews: [...state.cachedViews]
                })
            })
        },
        delOthersVisitedViews({ commit, state }, view) {
            return new Promise(resolve => {
                commit('DEL_OTHERS_VISITED_VIEWS', view)
                resolve([...state.visitedViews])
            })
        },
        delOthersCachedViews({ commit, state }, view) {
            return new Promise(resolve => {
                commit('DEL_OTHERS_CACHED_VIEWS', view)
                resolve([...state.cachedViews])
            })
        },

        delAllViews({ dispatch, state }, view) {
            return new Promise(resolve => {
                dispatch('delAllVisitedViews', view)
                dispatch('delAllCachedViews', view)
                resolve({
                    visitedViews: [...state.visitedViews],
                    cachedViews: [...state.cachedViews]
                })
            })
        },
        delAllVisitedViews({ commit, state }) {
            return new Promise(resolve => {
                commit('DEL_ALL_VISITED_VIEWS')
                resolve([...state.visitedViews])
            })
        },
        delAllCachedViews({ commit, state }) {
            return new Promise(resolve => {
                commit('DEL_ALL_CACHED_VIEWS')
                resolve([...state.cachedViews])
            })
        },
        updateVisitedView({ commit }, view) {
            commit('UPDATE_VISITED_VIEW', view)
        }
    }
}

export default tagsViewModule;

